40-meter DEM after repairs.

A detailed view shows nice textures but several flaws.


There is some confusion over what is meant by radius-based relief. The way Harvey originally calculated it, a circle was constructed at each landscape point. The relief was taken a the difference between the highest and lowest points in that circle. An alternative method would be to take the larger of The differences are significant, as shown below:
Old method (5-km radius) Center-based (10-km radius) Center-based (5-km radius)

And here is relief by basin. (All basins < 40 sq km are excluded)